Grid operator PJM has issued a Hot Weather Alert for its Mid-Atlantic and Southern regions for Thursday.
A Hot Weather Alert is a routine procedure PJM issues ahead of forecast temperatures of 90 degrees or above and/or high humidity to prepare transmission and generation personnel and facilities for expected increases in electricity demand. This alert does not require any action from customers.
The alert includes the Delmarva Power region. The utility has not issued any advisories to customers.
The PJM’s Southern Region is made up of the Dominion transmission zone. The Mid-Atlantic Region is made up of the following transmission zones:
A Maximum Generation Alert also remains in effect for July 16.
As of 8 a.m. on July 16, PJM expects to serve a peak load of around 145,100 megawatts on July 16 and a peak load of around 145,200 MW on July 17.
PJM’s record summer peak is 165,563 MW, set in 2006. On June 24, PJM served a preliminary peak of over 162,000 MW, the third-highest peak load in its history. The grid operator has warned that retirements of power plants has not kept pace with new generation, primarily solar and wind.
PJM has approximately 179,200 MW of generation capacity this summer, as well as approximately 7,900 MW of contracted demand response. Demand response programs pay customers in advance to have their electricity use automatically reduced in times of system stress.
The grid operator has come under fire for not doing more to deal with a backlog of solar and wind project going through the approval pipeline. PJM has made changes that include moving projects with financing and regulatory approvals to the top of the list.
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